243470145 has 16 divisors (see below), whose sum is σ = 389817792. Its totient is φ = 129762240.

The previous prime is 243470137. The next prime is 243470153. The reversal of 243470145 is 541074342.

It is an interprime number because it is at equal distance from previous prime (243470137) and next prime (243470153).

It is not a de Polignac number, because 243470145 - 2³ = 243470137 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21454 + ... + 30776.

It is an arithmetic number, because the mean of its divisors is an integer number (24363612).

Almost surely, 2^243470145 is an apocalyptic number.

It is an amenable number.

243470145 is a deficient number, since it is larger than the sum of its proper divisors (146347647).

243470145 is a wasteful number, since it uses less digits than its factorization.

243470145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11072.

The product of its (nonzero) digits is 13440, while the sum is 30.

The square root of 243470145 is about 15603.5298890988. The cubic root of 243470145 is about 624.4273325100.

The spelling of 243470145 in words is "two hundred forty-three million, four hundred seventy thousand, one hundred forty-five".